We need living examples

Do you have examples only in the form of html, it's not always convenient. Better living example like this
http://codepen.io/wanes101/pen/kkPrxd
This was done on the basis of
https://github.com/protonet/jquery.inview/blob/master/example/live_event.html
in your example it was necessary to add a line to sample earned. Line  26 in http://codepen.io/ editor
